{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["protein", "DNA", "RNA", "cell line", "cell type"], "input": "Expression of c-fos , c-jun and jun B in peripheral blood lymphocytes from young and elderly adults."}
{"protein": [], "DNA": ["c-fos", "c-jun", "jun B"], "RNA": [], "cell line": [], "cell type": []}